Home / 1,210,314.40-1,670,167.76-666,346.91

Finding the Fourth Proportional to 1,210,314.40, 1,670,167.76 and 666,346.91

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Solution

The fourth proportional to 1,210,314.40, 1,670,167.76 and 666,346.91 is: 919,522.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,314.40 : 1,670,167.76 = 666,346.91 : x
  2. Step 2: Convert to fraction form
    1,210,314.40/1,670,167.76 = 666,346.91/x
  3. Step 3: Cross multiply
    1,210,314.40x = 1,670,167.76 × 666,346.91
  4. Step 4: Simplify right side
    1,210,314.40x = 1,112,911,126,057.62
  5. Step 5: Solve for x
    x = 1,112,911,126,057.62/1,210,314.40
  6. Step 6: Final answer
    x = 919,522.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.